DEVICE AND METHOD FOR PRODUCING A SPUN-BONDED WEB FROM FILAMENTS

• Main Authors: FREY DETLEF, CINQUEMANI CLAUDIO, SCHLAG PETER, GEUS HANS GEORG
• Format: Patent
• Language: English; Korean
• Published: 10.08.2015
• Subjects: BRAIDING; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; SPINNING; TEXTILES; TRIMMINGS; WADDING

본 발명은, 방사노즐들과, 필라멘트를 냉각하기 위해 공정 공기가 그 내부로 유입될 수 있는 냉각 챔버와, 방사노즐들과 냉각 챔버 사이에 배치되는 모노머 흡입 디바이스와, 신장 유닛과, 및 스펀본디드 웨브를 형성하도록 필라멘트를 적층하기 위한 적층 디바이스를 포함하는, 필라멘트로 스펀본디드 웨브를 제조하기 위한 장치에 관한 것이다. 냉각 챔버는 2개의 냉각 챔버 섹션으로 분할된다. 공정 공기는 제1 상부 냉각 챔버 섹션으로부터 체적 유량(V)으로 모노머 흡입 디바이스 쪽으로 흡입될 수 있으며, 공정 공기는 제1 상부 냉각 챔버 섹션으로부터 체적 유량(V)으로 제2 하부 냉각 챔버 섹션 내로 유출된다. 체적 유량 비율(V/V)은 0.1 내지 0.3이다. Device for producing a spunbonded nonwoven web from filaments, comprises spinneret (1), a cooling chamber (7) into which processing air for cooling the filaments, is introducible, a monomer extraction device (3) arranged between the spinneret and the cooling chamber, a stretching unit, and a depositing device for depositing the filaments for the spunbonded nonwoven web. The cooling chamber is divided into two cooling chamber sections. The process air from a first upper cooling chamber section (7a) is aspirated to the monomer extraction device with a first volume flow. Device for producing a spunbonded nonwoven web from filaments, comprises spinneret (1), a cooling chamber (7) into which processing air for cooling the filaments, is introducible, a monomer extraction device (3) arranged between the spinneret and the cooling chamber, a stretching unit, and a depositing device for depositing the filaments for the spunbonded nonwoven web. The cooling chamber is divided into two cooling chamber sections. The process air from a first upper cooling chamber section, is aspirated to the monomer extraction device with a first volume flow. The process air discharged from the first upper cooling chamber section is aspirated to a second lower cooling chamber section (7b) with a second volume flow. The ratio of the first- and the second volume flow is 0.1:0.35, preferably 0.12:0.25. An independent claim is also included for producing the spunbonded nonwoven web from filaments made of thermoplastic material, comprises (a) spinning the filaments using a spinneret, (b) introducing the spun filaments into the cooling chamber through the monomer extraction device, for cooling the filaments with the process air, (c) aspirating the process air from the first upper cooling chamber section to the monomer extraction device with the first volume flow, (d) aspirating the process air discharged from the first upper cooling chamber section to the second lower cooling chamber section with the second volume flow, (e) introducing the filaments discharged from the cooling chamber, into a stretching unit, and (f) depositing the filaments on the storage device for the spunbonded nonwoven web.